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Toyota Harrier aircond no cold, change servo motor, vavle and Flushing aircond

2014 Toyota Harrier (XU60) air conditioning system 
commonly uses HFC-134a (R134a) refrigerant with a standard capacity of 500g. Issues in this model typically range from simple maintenance needs like a clogged cabin filter to more complex component failures like a faulty compressor or servo motor

Common Issues & Troubleshooting
If your air conditioning is not performing correctly, consider these common causes identified for the 2014 Harrier:

  • Weak Airflow: Often caused by a dirty cabin air filter. The filter is located behind the glove box and can be inspected or replaced easily by the owner.
  • No Cold Air: Frequently due to low refrigerant levels caused by leaks, or a faulty compressor. If the AC light is blinki
  • ng, it may indicate a compressor or electrical system error.
  • Intermittent Cooling: Some users report the AC stopping after long drives (e.g., 60-70 km) but working again after a break, which can sometimes be linked to freezing evaporator coils or sensor issues.
  • Electronic Hiccups: If the fan or compressor won't engage, resetting the system by pulling the AC fuse/relay for 5-10 minutes can sometimes resolve minor electrical glitches. 
Core Replacement Parts
For the 2014 Harrier (ZSU60 / ASU60 models), the following specific parts are frequently used for repairs:
  • Aircond Compressor: The 2014 model typically uses a 
    Denso 6SES14C
     or 
    6SE14C
     compressor.
  • Blower Motor: A 3-pin Denso blower motor with an integrated ECU is used for the 2014–2019 series.
  • Servo Motor: This component controls air mixture and mode; it is a common replacement part for the ZSU60 (2014–2017).
  • Cabin Air Filter: High-quality options like the 
    Bosch Aeristo C5094
     activated carbon filter are recommended to remove odors and allergens. s
  • Service & Maintenance Tips
  • Regular Operation: Run the AC regularly to keep internal seals lubricated and prevent the compressor from seizing.
  • Annual Checks: Experts recommend a professional inspection once a year to check for leaks and ensure the refrigerant pressure is within the ideal range.
  • Refrigerant Type: Ensure only R-134a is used for refills to avoid damaging the system.